Blood Tests For Pregnant Women Do Urine Pregnancy Tests Not Work For Some Women? Does It Need To Be Done With A Blood Test?

Do urine pregnancy tests not work for some women? Does it need to be done with a blood test? - blood tests for pregnant women

I feel like I'm pregnant. I have all the symptoms of a pregnant woman, and did not have my period of 7 weeks. However, I have negitive 3 different tests of urine and continue to climb. A friend of mine told me it was a blood, urine tests, because some women simply do not work. Is that true? I do not see the blood rises after 3 positive urine test results negitive.